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[1]L Weitao,Hu Xiasong,Liu Changyi,et al.CSLE Mode-Based Assessment of the Soil Erosion Along the Longyangxia Gorge and Jishixia Gorge in the Upper Yellow River[J].Research of Soil and Water Conservation,2023,30(06):11-23.[doi:10.13869/j.cnki.rswc.2023.06.038]

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CSLE Mode-Based Assessment of the Soil Erosion Along the Longyangxia Gorge and Jishixia Gorge in the Upper Yellow River

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 30 Number of periods: 2023 06 Page number: 11-23 Column: Public date: 2023-10-10

Title:: CSLE Mode-Based Assessment of the Soil Erosion Along the Longyangxia Gorge and Jishixia Gorge in the Upper Yellow River

Author(s):: Lü Weitao¹, Hu Xiasong¹, Liu Changyi¹, Fu Jiangtao², Xing Guangyan³, Zhao Jimei³, He Weipeng¹, Yang Fucheng¹; (1.Department of Geological Engineering, Qinghai University, Xining 810016, China; 2.Academy of Agriculture and Forestry, Qinghai University, Xining 810016, China; 3.College of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China)

Keywords:: upper region of the Yellow River; soil erosion; map algebra; spatial interception; vegetation coverage; spatial-temporary variation

CLC:: S157.1

DOI:: 10.13869/j.cnki.rswc.2023.06.038

Abstract:: [Objective] The aims are to study the soil erosion characteristics of Longyang Gorge to Jishi Gorge in the upper reaches of the Yellow River from 2017 to 2021, reveal the contribution of vegetation in soil erosion prevention and control, and provide scientific and technological support for the rational implementation of vegetation soil and water conservation and ecological security protection in the upper reaches of the Yellow River basin. [Methods] The section from Jishixia Gorge to Longyangxia Gorge of the Yellow River was chosen as the study area, and based on CSLE modes, methods of using spatial interception and map algebra were adapted to obtain soil erosion and vegetation coverage in this region and the spatial-temporary variation of the prementioned data. [Results] On these basis, the contribution of the vegetation to conserving soil was assessed, and the corresponding results showed that from 2017 to 2021, slight erosion and light erosion were the predominant erosion intensities, and the corresponding erosion moduli were 21.329, 55.518, 23.394, 21.490, 21.650 t/(km²·a), respectively. [Conclusion] Additionally moderate and heavy erosion generally occurres in regions with sparse vegetation coverage, and regions suffering a slight erosion are generally characterized with high coverage, which verifies the role vegetation in reducing soil erosion. The vegetation can effectively reduce the occurrence of soil erosion.

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Last Update: 2023-10-10